Champion DRS-Series Variable Speed Rotary Screw Air Compressor – 10 to 175 HP, Base Mount or AirStation

Champion DRS-Series Variable Speed Rotary Screw Air Compressors, 10 to 175 HP

The Champion DRS-Series is the variable speed drive half of Champion's enclosed oil-injected rotary screw line. Where a fixed-speed machine loads and unloads against a set pressure band, a DRS unit varies motor speed to match the air the plant is actually drawing, so the compressor makes exactly the flow the system needs and no more. On a plant with a swinging demand profile that is where the electricity bill goes: unloaded running time on a fixed-speed package is paid for and produces nothing.

Every DRS model ships as a fully enclosed, air-cooled package with a radiator-type aftercooler and oil cooler, spin-on air/oil separator, spin-on oil filter, ASME oil reservoir, heavy-duty inlet filter, minimum-pressure discharge check valve, thermostatic mixing valve, the Champion Governor controller and a RotorLub 4000 fill. The 10 and 15 HP machines are belt driven in a 70 to 71 dBA cabinet small enough to live in a work area. From 40 HP up the drive is direct, with no belts to tension and no drive guard to pull. Capacity runs from 42 CFM on the DRS10 to 737 CFM on the DRS175.

Warthog Air Compressor Store is an authorized Champion distributor. Every price on this page is built from the Champion August 2026 Rotary Price List, effective August 15 2026, which supersedes all previous pricing.

Model Selection Chart

Model	HP	CFM @ PSIG	dBA	Weight (base mount)	Configurations	Warthog Price
DRS10	10	42.1 @ 100 / 36.0 @ 125 / 26.4 @ 175	70	576 lb	5	$17,270 to $20,808
DRS15	15	58.7 @ 100 / 54.8 @ 125 / 41.7 @ 175	71	576 lb	5	$20,082 to $24,135
DRS20	20	82.6 @ 110 / 74.8 @ 125 / 60.1 @ 175	73	945 lb	5	$26,177 to $31,431
DRS25	25	102.9 @ 110 / 89.6 @ 125 / 73.9 @ 175	74	945 lb	5	$27,863 to $34,516
DRS30	30	119.2 @ 110 / 110.6 @ 125 / 91.0 @ 175	74	945 lb	5	$30,736 to $37,541
DRS40	40	181.7 @ 100 / 167.1 @ 130 / 158.8 @ 145	74	1,950 lb	1	$34,418
DRS50	50	222.8 @ 100 / 205.6 @ 145 / 187.6 @ 175	74	1,968 lb	1	$35,817
DRS75	75	348 @ 100 / 328 @ 125 / 304 @ 145	76	4,207 lb	1	$52,595
DRS100	100	458 @ 100 / 405 @ 125 / 374 @ 145	76	4,360 lb	1	$65,630
DRS125	125	601 @ 110 / 566 @ 125 / 472 @ 175	80	6,744 lb	1	$81,122
DRS150	150	679 @ 110 / 645 @ 125 / 542 @ 175	80	6,821 lb	1	$98,195
DRS175	175	737 @ 110 / 715 @ 125 / 614 @ 175	80	6,946 lb	1	$98,195

Flow, pressure and voltages above are 60 Hz figures. Pricing is the same for 50 Hz and 60 Hz models; contact us for 50 Hz flow and voltage data.

Shared Technical Specifications

Model	Dimensions L x W x H (in)	Discharge	Oil Capacity gal (L)	Drive	Control Enclosure	Motor	Design Codes
DRS10	27 x 28 x 45	0.75" NPT	.65 (2.5)	Belt Drive	IP54	TEAO, 3600 RPM	cULus Listed, CSA Approved Electronics
DRS15	27 x 28 x 45	0.75" NPT	.65 (2.5)	Belt Drive	IP54	TEAO, 3600 RPM	cULus Listed, CSA Approved Electronics
DRS20	35 x 32 x 50	1" NPT	2.5 (9.5)	Belt Drive	IP23	TEFC, 3510 RPM	Complies with UL Standards
DRS25	35 x 32 x 50	1" NPT	2.5 (9.5)	Belt Drive	IP23	TEFC, 3510 RPM	Complies with UL Standards
DRS30	35 x 32 x 50	1" NPT	2.5 (9.5)	Belt Drive	IP23	TEFC, 3510 RPM	Complies with UL Standards
DRS40	63.1 x 36.6 x 67.8	1.5" NPT	5.0 (19)	Direct Drive	IP41	TEFC, 3600 RPM	cULus Listed Electronics
DRS50	63.1 x 36.6 x 67.8	1.5" NPT	5.0 (19)	Direct Drive	IP41	TEFC, 3600 RPM	cULus Listed Electronics
DRS75	80 x 50 x 84	2" NPT	9.0 (34.1)	Direct Drive	IP41	TEFC, 3600 RPM	cULus Listed Electronics
DRS100	80 x 50 x 84	2" NPT	9.0 (34.1)	Direct Drive	IP41	TEFC, 3600 RPM	cULus Listed Electronics
DRS125	96 x 63 x 80.2	3" NPT	26 (98.4)	Direct Drive	IP41	TEFC, 3600 RPM	QPS Certified to UL Standards
DRS150	96 x 63 x 80.2	3" NPT	26 (98.4)	Direct Drive	IP41	TEFC, 3600 RPM	QPS Certified to UL Standards
DRS175	96 x 63 x 80.2	3" NPT	26 (98.4)	Direct Drive	IP41	TEFC, 3600 RPM	QPS Certified to UL Standards

Common to every DRS model: air-cooled radiator-type aftercooler and oil cooler; spin-on air/oil separator; spin-on oil filter; ASME oil reservoir; heavy-duty inlet air filter; minimum-pressure discharge check valve; thermostatic mixing valve; corrosion-resistant control tubing; three phase 60 Hz CSA-approved motor; Champion Governor controller; RotorLub 4000 lubricant; unlimited soft starts from the variable frequency drive (20 HP and up). Water-cooled aftercooling is not offered on any DRS model.

Variable frequency drives are Eaton on the 20 through 30 HP frames, Eaton with an integrated EMC filter and internal DC choke from 40 through 100 HP, and an integrated EMC filter with internal DC choke on the 125 through 175 HP frames. Where a line reactor is listed as an option, the machine already carries a DC bus choke; the reactor is an external ship-loose item.

What the Configurations Mean

Base Mount, Three Phase. The compressor alone on its own feet, piped into a receiver you already own or buy separately. A moisture trap ships loose with every base mount unit. Available on all twelve models.

AirStation. A factory-assembled package: the compressor mounted on a horizontal ASME receiver with stainless steel air supply lines, integrated enclosed fork lift slots and a condensate drain. Offered with an 80 or 120 gallon tank on the DRS10 and DRS15, and with a 120 or 240 gallon tank on the DRS20, DRS25 and DRS30. From 40 HP up the DRS Series is base mount only.

AirStation With Dryer. The same package with a Champion non-cycling refrigerated dryer mounted and piped on the skid, plus a bypass valve and a manual tank drain. The factory matches the dryer to the compressor: XCNCA75 on the DRS10 and DRS15, XCNC100 on the DRS20, and XCNC150 on the DRS25 and DRS30.

Voltage is an order-entry selection, not a price difference. Champion prints 200V, 230V, 380V, 400V, 460V and 575V at the same list price on every DRS model that offers them, so this listing carries one configuration per mechanical package and you tell us the voltage on the order. Not every voltage is offered on every model, so confirm yours with us before ordering.

Ideal Applications

• Plants with a swinging air demand. Shifts that start and stop, machines that cycle, a shop that runs flat out in the morning and idles in the afternoon. A VSD machine tracks the load instead of blowing off air.
• Trim duty on a multi-compressor system. Run fixed-speed base load machines flat out and let the DRS unit follow the swing. Add the sequencing kit or communication module so the machines talk to one another.
• Pressure-sensitive processes. Variable speed holds a far tighter pressure band than load/no-load, which lets a plant drop system pressure and take the energy saving that comes with it.
• Noise-sensitive installations. 70 to 76 dBA through the 100 HP frame, which generally means the compressor can sit in the work area rather than in its own room.
• Soft-start requirements. The VFD gives unlimited soft starts with no inrush penalty, which matters where the utility or the service entrance limits starting current.

Service, Options and Accessories

Every priced factory-installed option for this family is sold on its companion listing, Champion DRS-Series Factory-Installed Options: moisture separators, line reactors, electric and automatic tank drains, sequencing kits and communication modules, remote start kits, disconnect kits and the full RotorLub lubricant range. Options must be ordered with the compressor to be factory installed.

Order-time selections carrying no charge. California Code receiver (must be selected in the configurator; call for California Code receiver dimensions), the RotorLub 4K fill in place of RotorLub 4000, and the 70°C / 158°F mixing valve where the book shows it standard. These are configurator choices, not line items, so tell us on the order rather than looking for them in the cart.

Also available by quote. Champion publishes no list price for the 10-year premium warranty kits, so they are quoted rather than listed: 4798884001 (DRS10, DRS15), 302EJC6032 (DRS20, DRS25, DRS30), MK-D40-50B (DRS40, DRS50), 300DFX6032 (DRS75, DRS100) and 301DMX6032 (DRS125, DRS150, DRS175). The XCNC dryer prefilter on the 20 through 30 HP AirStation packages is also unpriced in the book. Installation kits, remote start kits and heater kits are printed N/A on the 30 HP frame.

Also see the fixed-speed siblings: the Champion D-Series 5 to 175 HP enclosed fixed speed, the Champion L-Series 30 to 40 HP direct-gear 190 PSIG, and the Champion LV / LVR rotary vane range. Browse all Variable Speed Rotary Air Compressors, every Rotary Screw Air Compressor we carry, the full Champion line, and Air Dryers if you are buying the compressor and dryer separately.

One anomaly in the price book. In the August 2026 book the Standard Features spread covering the DRS10 and DRS15 reads like a fixed speed machine: the running header says "Oil Injected Rotary Fixed Speed", the Capacity Control row reads "Load/No Load", the Starter row reads "Full Voltage", and there is no Variable Frequency Drive row at all, where every other DRS spread reads "Variable Speed", "Unlimited Soft Starts" and names the drive. The pricing on that spread is published under the variable speed section and the models are DRS10 and DRS15. We publish what the book prints and have asked Champion to confirm the 10 to 15 HP standard features in writing. Ask us before ordering if the control scheme on that frame matters to your application.

Ordering Notes

SKUs on this listing are Warthog part numbers in the form CH<model>-<configuration>. Champion's rotary price book is a configurator matrix, not a part number table: it prints a Model row and a Configurator (Order Entry #) row, and no orderable stock number. The configurator codes for this family are DRS10-15B, DRS20-30B, DRS40-50C, DRS75-100B and DRS125-175B. Quote your Warthog SKU and we will translate it into the factory order.

Weights shown are Champion-published approximate base-mount weights. AirStation variants carry no weight because none is published. Dimensions are approximate and exclude the receiver on tank-mounted packages.